I used a filling recipe from Food & Wine magazine that can be found here: http://www.foodandwine.com/recipes/chocolate-cupcakes-with-cream-filling6 tablespoons unsalted butter, softened 1 1/2 cups confectioners' sugar 3/4 cup Marshmallow ...
I totally disagree with the contest rule that says cupcakes are not cake, which inspired me to make a cake based on perhaps the most infamous cupcake their is: the hostess cupcake.
I found a filling recipe on the internet and took a few shortcuts - like using a box cake mix - since I just came up with this on a whim. I was pretty happy with it but would make a few slight changes if I made it in the future (I'll list them in the steps)
I ended up taking my finished cake to work and it was a big hit.